280836440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:337

約数の個数: 128

約数和(自身を含む): 699494400

約数和(自身を除く): 418657960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 43, 46, 62, 86, 92, 115, 124, 155, 172, 184, 215, 229, 230, 248, 310, 344, 430, 458, 460, 620, 713, 860, 916, 920, 989, 1145, 1240, 1333, 1426, 1720, 1832, 1978, 2290, 2666, 2852, 3565, 3956, 4580, 4945, 5267, 5332, 5704, 6665, 7099, 7130, 7912, 9160, 9847, 9890, 10534, 10664, 13330, 14198, 14260, 19694, 19780, 21068, 26335, 26660, 28396, 28520, 30659, 35495, 39388, 39560, 42136, 49235, 52670, 53320, 56792, 61318, 70990, 78776, 98470, 105340, 122636, 141980, 153295, 163277, 196940, 210680, 226481, 245272, 283960, 305257, 306590, 326554, 393880, 452962, 610514, 613180, 653108, 816385, 905924, 1132405, 1221028, 1226360, 1306216, 1526285, 1632770, 1811848, 2264810, 2442056, 3052570, 3265540, 4529620, 6105140, 6531080, 7020911, 9059240, 12210280, 14041822, 28083644, 35104555, 56167288, 70209110, 140418220, 280836440]

約数ペア:

[(1, 280836440), (2, 140418220), (4, 70209110), (5, 56167288), (8, 35104555), (10, 28083644), (20, 14041822), (23, 12210280), (31, 9059240), (40, 7020911), (43, 6531080), (46, 6105140), (62, 4529620), (86, 3265540), (92, 3052570), (115, 2442056), (124, 2264810), (155, 1811848), (172, 1632770), (184, 1526285), (215, 1306216), (229, 1226360), (230, 1221028), (248, 1132405), (310, 905924), (344, 816385), (430, 653108), (458, 613180), (460, 610514), (620, 452962), (713, 393880), (860, 326554), (916, 306590), (920, 305257), (989, 283960), (1145, 245272), (1240, 226481), (1333, 210680), (1426, 196940), (1720, 163277), (1832, 153295), (1978, 141980), (2290, 122636), (2666, 105340), (2852, 98470), (3565, 78776), (3956, 70990), (4580, 61318), (4945, 56792), (5267, 53320), (5332, 52670), (5704, 49235), (6665, 42136), (7099, 39560), (7130, 39388), (7912, 35495), (9160, 30659), (9847, 28520), (9890, 28396), (10534, 26660), (10664, 26335), (13330, 21068), (14198, 19780), (14260, 19694)]